Neuroethics
Should DBS personality-change ethics shrink?
Open access · cc by · source: Europe PMC
Personality, identity, agency, authenticity and self (PIAAAS) changes after DBS look rare in first-hand studies, so neuroethics should deflate the bubble without ignoring the remaining philosophical questions.
How this study connects
Role on claims
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Check how often a feared effect actually shows up before building an ethics around it.
A review of first-hand reports suggests changes to personality, identity, agency, authenticity and self (PIAAAS) after deep brain stimulation are rare, so the debate should be deflated rather than treated as a routine identity crisis — though the remaining philosophical questions do not disappear.
Evidence for the claim as stated.
The DBS deflation paper and the BCI interview study both use first-person reports, but they point in different directions: DBS reports suggest identity change is rare, while BCI users describe their device reshaping self-definition and blurring responsibility. The devices, populations and questions differ, so this is a limit on generalising 'neurotech rarely changes the self', not a direct contradiction.
Evidence for the claim as stated.
Open questions
Tensions this paper is part of
From concept pages' “where studies disagree.” Disagreement means the same question; scope means different assays, populations, or outcomes.
The DBS deflation paper and the BCI interview study both use first-person reports, but they point in different directions: DBS reports suggest identity change is rare, while BCI users describe their device reshaping self-definition and blurring responsibility. The devices, populations and questions differ, so this is a limit on generalising 'neurotech rarely changes the self', not a direct contradiction.
History
When this study was placed
Dated entries from the concept change log — when this paper was added or removed as support, challenge, or qualifier on a claim.
Placed as supporting evidence on Neuroethics
The DBS deflation paper and the BCI interview study both use first-person reports, but they point in different directions: DBS reports suggest identity change is rare, while BCI users describe their device reshaping self-definition and blurring responsibility. The devices, populations and questions differ, so this is a limit on generalising 'neurotech rarely changes the self', not a direct contradiction.
Inspect source passages
Should DBS personality-change ethics shrink?
These passages occur verbatim in the stored paper text. They support the points listed below; they do not verify every statement in the explanation.
Only 12.5% of first-hand primary studies significantly support a DBS–PIAAAS link.
In view of this, perhaps the most striking finding in Gilbert et al.’s paper is that only 12.5% of first-hand primary studies provide significant evidence to support a link between DBS and alterations to PIAAAS []
The 8 primary studies of the phenomenon all lacked a control group.
the 8 primary studies investigating this phenomenon all lacked a control group
Key findings
Only 12.5% of first-hand primary studies significantly support a DBS–PIAAAS link, and the eight stronger studies lacked control groups. Pugh treats authenticity as a philosophical concept, not a clinical category, and concludes there is scope to deflate the PIAAAS bubble without bursting it.
Methodology
Pugh reviews Gilbert and colleagues’ evidence-based critique of the DBS–PIAAAS literature and asks what neuroethics should do with it. He distinguishes the causal question (does DBS change PIAAAS?) from the ethical questions that remain even if such changes are uncommon, including reversibility versus ablation.
Limitations
This is a methodological and ethical argument about a literature review, not a new DBS trial. It cannot settle how often personality change occurs in unstudied indications, and it does not offer a full theory of authenticity.
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